EF增删查改加执行存储过程和sql语句，多种方法汇总

 ActionUrl c = new ActionUrl() { ActionName="test", RequestUrl="/123/123", SubTime=DateTime.Now };
             //增
             using (EntityContext db = new EntityContext())
             {

                 /*方法1*/
                 db.ActionUrls.Add(c);
                 db.SaveChanges();
                 /*方法2*/
                 db.Set<ActionUrl>().Attach(c);
                 db.Entry<ActionUrl>(c).State = EntityState.Added;
                 db.SaveChanges();
                 //return c;
                 /*方法3*/
                 //EF4.0的写法
                 //db.CreateObjectSet<T>().AddObject(entity);

             }
             //查
             using (EntityContext db = new EntityContext())
             {
                 c = db.ActionUrls.Where(t => t.ActionName == "test").FirstOrDefault();
             }
             //改
             using (EntityContext db = new EntityContext())
             {
                 /*方法1*/
                 c.ActionName = "test001";
                 db.ActionUrls.Attach(c);
                 db.Entry<ActionUrl>(c).State = EntityState.Modified;
                 db.SaveChanges();
                 /*方法2*/
                 c.ActionName = "test002";
                 db.SaveChanges();
                 //return db.SaveChanges() > 0;
                 /*方法3*/
                 //EF4.0的写法
                 //db.CreateObjectSet<T>().Addach(entity);
                 //db.ObjectStateManager.ChangeObjectState(entity, EntityState.Modified);
             }
             //删
             using (EntityContext db = new EntityContext())
             {
                 /*方法1*/
                 //此处删除的对象不能是自己定义出来的对象，只能是数据库查询出来的对象
                 c = db.ActionUrls.Where(t => t.ActionName == "test").FirstOrDefault();
                 db.ActionUrls.Remove(c);
                 db.SaveChanges();
                 /*方法2*/
                 //c = db.ActionUrls.Where(t => t.ActionName == "test").FirstOrDefault();
                 db.Set<ActionUrl>().Attach(c);
                 db.Entry<ActionUrl>(c).State = EntityState.Deleted;
                 db.SaveChanges();
                 //return db.SaveChanges() > 0;
                 /*方法3*/
                 //EF4.0的写法
                 //db.CreateObjectSet<T>().Addach(entity);
                 //db.ObjectStateManager.ChangeObjectState(entity, EntityState.Deleted);
             }

             //存储过程和sql语句
             EntityContext dbsql = new EntityContext();
             SqlParameter[] parameters = new SqlParameter[]{
                 new SqlParameter("@name",SqlDbType.NVarChar)
             };
             parameters[].Value = "test";

             //执行strSql/procSql
             //返回受影响的行数
             int i = dbsql.Database.ExecuteSqlCommand("exec getActionUrlId @name", parameters);

             List<ActionUrl> dd01 = dbsql.Database.SqlQuery(typeof(ActionUrl), "exec getActionUrlId @name", parameters).Cast<ActionUrl>().ToList();
             //执行strSql/procSql
             //返回数据的集合
             List<ActionUrl> dd02 = dbsql.Database.SqlQuery<ActionUrl>("exec getActionUrlId @name", parameters).ToList();//返回查询到的实体集合

大致的增删查改和存储过程，执行sql语句和执行存储过程差不多。只有删除比较特殊！